BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Beaver Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 51 survey years, still active.

103Species Recorded
51Years Surveyed
1969–2024Span
6Observers

Bird Species Found on Pennsylvania Beaver

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Beaver route.
History
American RobinTurdidae1052024+51%1971
European StarlingSturnidae1042024+26%1971
American CrowCorvidae482024+107%1971
Song SparrowPasserellidae432024+14%1971
Northern CardinalCardinalidae422024+118%1971
Red-eyed VireoVireonidae352024+258%1971
Red-winged BlackbirdIcteridae322024-62%1971
Gray CatbirdMimidae262024+97%1971
Chipping SparrowPasserellidae252024+89%1971
Chimney SwiftApodidae222024+221%1971
Common GrackleIcteridae222024-15%1971
American GoldfinchFringillidae222024+35%1971
House SparrowPasseridae212024-58%1971
Brown-headed CowbirdIcteridae192024+70%1971
Carolina WrenTroglodytidae192024+820%1974
Mourning DoveColumbidae182024+196%1971
Indigo BuntingCardinalidae182024+181%1971
Blue JayCorvidae172024+247%1972
Northern House WrenTroglodytidae132024+23%1971
Wood ThrushTurdidae132024-12%1971
Red-bellied WoodpeckerPicidae132024+900%1991
Baltimore OrioleIcteridae122023+320%1972
Northern Rough-winged SwallowHirundinidae122024+100%1977
Tufted TitmouseParidae112024+194%1972
Eastern Wood-PeweeTyrannidae102024+457%1973
Northern MockingbirdMimidae102024+163%2009
Common YellowthroatParulidae92024+65%1971
Barn SwallowHirundinidae82024+50%1971
Yellow WarblerParulidae82024+429%1972
White-breasted NuthatchSittidae82024+40%1973
Scarlet TanagerCardinalidae82024+450%1978
Canada GooseAnatidae82021-36%1992
Downy WoodpeckerPicidae72024+100%1971
Rose-breasted GrosbeakCardinalidae72024+350%1979
House FinchFringillidae72024+375%1982
Willow FlycatcherTyrannidae62024+300%1981
Carolina ChickadeeParidae62024+40%2008
Field SparrowPasserellidae52024-74%1971
Eastern TowheePasserellidae52024+14%1971
Black-capped ChickadeeParidae52024+400%1977

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.